Collapsible tire core



March 18 1924- A.- H. HARRIS COLLAPSIBLE TIRE CORE March 18 1924. l,486,959

' A. H. HARRISv COLLAPS IBLE TIRE CORE Filed Nov. 2s, l1922 2 sheets-sheet 2 Patented lit/lai*0 18, 1924.

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Application led November 28, 1922. Serial No. 603,744.

and useful improvements in Collapsible Tire Cores, of-which the following specification.

This invention relates to collapsible annular cores of the type wherein a series of isa segmental sections are so constructed and relatively mounted that they can be collapsed in a. manner to facilitate the removal of a tire when it has been lbuilt up o-r formed upon the core, and which sections can then be returned to their original position for a succeeding tire building or form-j ing operation. The object of my invention is to provid a core of the type described of simple and efficient construction and operation wherein the sections can be collapsed' 0r be 4returned to annular formation, with facility and dispatch, without resort, in either case, to power-actuated devicesV Mv invention, generally stated, comprises a plurality of sections whereof two are pivotally supported for swinging movement toward and from each other within the plane of the core, and whereof a third section is slidably supported on a novel frame structure which is, in turn, mounted for swinging movement toward and from such plane, whereby the latter section can be retracted inwardly from the space between the ends ofthe first-named sections when the several sections are in annular relation, and then can be swung laterally outward to afford an open space into which the thus endfreed pivoted sectionsv can be moved to superpose one of the latter on the other, and

whereby, subsequently, all the said sections can be readily positioned in annular relation to complete the core; all of which will be hereinafter described, the scope of the invention being defined inl the appended claims.

In the drawings- Figure 1 is a front elevation of a collapsible tire core embodying myinvention, showi ing the sections in annular relation, and indicating in dotted lines the position of the key section when it is retracted within the plane of the core.

Fig. 2 is a vertical section through the structure, on the line 2-2 of Fig. 17 indicating in dotted lines the key section as retrac-ted and also as swung outward.

"Fig 3 is a front elevation showing the key section as retracted and swung outward, and the hinged side sections swung inward one upon the other.

Fig. l is a perspective view of the supporting bracket and the swinging frame thereon for the guide rods of the key-section. Referring to thedrawings, 10, 11, 12 and 13 designate a series of relatively movable segmental sections which can be readily assembled and positioned to constitute a completeV annular core upon which a tire can be built or formed, and which sections can be as readily collapsed or broken to facilitate the effective removal of the tire there from.

The section 10, which constitutes the base section, is provided with an internal web 111 that is bolted, as at 15, to the outer portion of a supporting bracket 16 having a hub 17 laterally of and in axial alinement with the core. This hub is adapted to be mounted on the end of a suitable supporting shaft. The sections 11 and 12, which constitute opposite side sections, are provided with internal ribs having suitablydisposed lugs 18, 19 which are permanently pivoted to the respective ends of the bracket, so that said sections can be swung on their axes toward and from the interior of the core. These lugs may, if. desired, be pivotally attached to lugs formed on the re spective Aends of the section 10. The eX- tremities oftheV three sections 10, 11 and 12, adjacent the pivots, are so formed that when the sections 11, 12 are in their normal or outer. position such extremities abut squarely against each other, and the peripheries of three sections 10, 11 and 12 are in circular relation to each other, withthe free ends of the sections 11, 12 lspaced apart, as seen in Fig. 1. The Vpivotal point of the section 12 is in a plane above that of the section 11 for a purpose below explained.

The section 13 constitutes a key section the two sections being relatively located to the said arms and the support, and guide permit one section to be folded upon and rods extending inwardly from the key seolongitudinally of the other section, a key seotion and slidably fitted to the body of the tion movable into and from the normal space frame.

between the free ends of the side sections, a Signed at Akron, in the county of Sumbifureated frame whereof the arms loosely mit and State of Ohio, this 22nd day oi embrace the hub and depend therefrom, a Nov. A. D. 1922.

pivotal connection between the lower ends of ARCHER H. HARRIS. 

